private static ITry <ShoppingListWithItems, AddFoodstuffsError> Process(ApiResult <AddFoodstuffsToShoppingListResponse> response) =>
response.Match(
s => Try.Success <ShoppingListWithItems, AddFoodstuffsError>(ToShoppingList(s)),
e => Try.Error <ShoppingListWithItems, AddFoodstuffsError>(e.Message.Match(
"Item already added.", _ => AddFoodstuffsError.FoodstuffAlreadyAdded
)),
noConn => throw new NotImplementedException()
/// <summary>
/// Turns the option into a try using the exception in case of empty option.
/// </summary>
public static ITry <A, E> ToTry <A, E>(this IOption <A> option, Func <Unit, E> e)
{
return(option.Match(
val => Try.Success <A, E>(val),
_ => Try.Error <A, E>(e(Unit.Value))
));
}
/// <summary>
/// Maps the error result to a new try.
/// </summary>
public static ITry <B, F> FlatMapError <A, E, B, F>(this ITry <A, E> t, Func <E, ITry <B, F> > f)
where A : B
where E : F
{
return(t.Match(
s => Try.Success <B, F>(s),
e => f(e)
));
}
private static ITry <Unit, SignUpError[]> Success() => Try.Success <Unit, SignUpError[]>(Unit.Value);
private static ITry <IAccount, SignInError> Success(IAccount a) => Try.Success <IAccount, SignInError>(a);
public static ITry <T, E> ToTry <T, E>(this bool b, Func <Unit, T> ifTrue, Func <Unit, E> ifFalse)
{
return(b ? Try.Success <T, E>(ifTrue(Unit.Value)) : Try.Error <T, E>(ifFalse(Unit.Value)));
}